Coil winding machine



Nov. 27, 1962 z. c. POSSIS ETAL 3,065,771 COIL WINDING MACHINE FiledSept. 2, 1958 2 Sheets-Sheet 1 FIG. 1

W MM

Nov. 27, 1962 2. c. POSSIS ETAL 3,065,771

COIL WINDING MACHINE Filed Sept. 2, 1958 2 Sheets-Sheet 2 INVENTOKS'Z/NO/V C. Poss/ W/ILBERT E Jbmvw/v BY MEL I/l/V .Z'J'TRAuB Thisinvention relates to a machine for Winding coils. More particularly,this invention relates to a machine for producing coils comprised of aplurality of wires having either the same or different number of turnsalthough coils of the single wire strand may be produced.

The principal object of this invention is to provide an apparatus forwinding a plurality of wires around a form or winding block for themanfacture of Wire coils in which the number of turns of the severalwires are in a predetermined relationship.

A further object of this invention is to provide a coil windingapparatus including a planetary gear drive and a plurality of spinnersadapted to be driven at different velocities.

Other objects of the invention will become apparent as the descriptionproceeds.

To the accomplishment of the foregoing and related ends, this inventionthen comprises the features hereinafter fully described and particularlypointed out in the claims, the following description setting forth indetail certain illustrative embodiments of the invention, these beingindicative, however, of but a few of the various ways in which theprinciples of the invention may be employed.

The invention is illustrated by the drawings in which the same numeralsrefer to corresponding parts and in which:

FIGURE 1 is an elevation of the coil winding machine according to thisinvention;

FIGURE 2 is an enlarged elevation in vertical section of the planetarygear drive mechanism of the coil winding machine;

FIGURE 2A is a reduced and somewhat simplified diagrammatic sectionalview taken on the line 2A-2A of FIGURE 2 and in the direction of thearrows showing the arrangement of the planetary gear assembly; and

FIGURE 3 is a plan View, partly in section, taken on the line 3-3 ofFIGURE 1 and showing the relation of wire spinners and coil windingform.

Referring to the drawings, the coil winding machine according to thisinvention includes a rotary turntable 10 mounted for rotation on astandard 11 supported on a suitable base 12. A coil winding form orblock, indicated generally at 13, is secured to the top of the turntableill. Supported above the work table Iii is an open frame-like housing,indicated generally at 14, and comprised of a bottom plate member 15, atop plate member 16 and an end panel 17.

A planetary gear drive assembly, indicated generally at 18, is supportedin the housing 14 between the bottom and top plates 15 and 16. The gearassembly includes an inner shaft 19 having a central longitudinalopening 20 and journalled by suitable bearing structures 21 and 22 forrotation within a tubular outer shaft 23. Shaft 19 is provided with acentrally disposed pinion 24 which acts as a sun gear. Suitable packing25 is fitted around the shaft 19 in the lower end of the tubular shaft23.

The lower end of the tubular shaft 23 is journalled in a suitablebearing structure 27 supported in a flanged annular plate 28 secured bymeans of bolts 29 or equivalent fastening means to the bottom plate 15of the frame 14. The upper end of the outer tubular shaft 23 isjournalled for rotation in a suitable bearing structure 30 held in an3,65,??1 Patented Nov. 27, 1952 annular plate 31 secured as by bolts 32or equivalent means to the top plate 16 of the housing 14. Anintermediate portion 33 of the outer tubular shaft 23 is substantiallythicker and of greater diameter than the remainder of the tubular shaft.

\A plurality of radial openings or horizontal slots are provided evenlyspaced about the thicker portion 33 of the outer shaft 23 communicatingwith the hollow interior of the outer shaft 23. A planetary pinion gear35 is journalled to rotate on a pin 36 in each of the openings to meshwith the sun gear 24 on the inner shaft 19. A ring gear 37 is mounted ina two-part gear housing 3-839 to mesh with the teeth of each of theplanetary gears .35. The gear housing 38-39 is mounted for rotationabout the outer tubular shaft 23 by means of two bushings or sleeves 4iand 41 of bearing material and two annular bushing rings 42 and 43 ofbearing material positioned between the inside wall surfaces of thehousing 38-39 and the outer surfaces of the outer tubular shaft 23.

The top portion 38 and the bottom portion 39 of the gear housing and thering gear 37 are secured together to move as a unit, as by means ofbolts 44. A drivev sprocket 45 is secured to the gear housing 38-39, asby means of a bolt 46. A ring of packing 47 is interposed between thebottom of the gear housing 39 and the outer tubular shaft 23. A seconddrive spocket 48 is secured to the outer tubular shaft 23, as by meansof key 49 held by a set screw 50. A longitudinal aperature 51 extendsthe length of the outer shaft 23 through its side wall. Sprocket 45 isdriven by a chain drive 52, and sprocket 48 is driven by a chain drive53, from suitable motor means not shown. The sprockets may be driveneither at the same or different rates depending upon the desiredstructure of the coil to be produced, as pointed out in greater detailhereinafter.

It will be noted that when sprocket 45 is driven, the gear housing 3839and ring gear 37 are driven with it at the same rate. Ring gear 37drives the planetary pinion gears 35, which in turn drive the sun gear24 to rotate the inner shaft 19 in the opposite direction. When drivesprocket 48 is driven it causes rotation of the outer tubular shaft 23.Rotation of shafts 19 and 23 causes spinners to deposits wire about thecoil forming block 13, as described hereinafter. throughout thespecification and claims of this application that the term wire is notlimited to Wire of circular cross section but compreheuds circular,square, rectangular, etc. cross section.

A reeel or spool 54 of wire 55 is supported for rotation on a shaft 56,supported in turn between the free ends of a yoke 57, carried by asleeve 58 secured, as by means of a set screw 59, to the upper end ofinner shaft 19 for rotation with that shaft. Wire 55 extends from thereel or spool 54 through the aperture 20 through the the shaft 19. Thespiner arm 60 is clamped to the bottom the shaft. The spinner arm 60 isclamped to the bottom end of the shaft 19 for rotation therewith andextends angularly downwardly and outwardly from the bottom of the shaft.

The spinner 60 is provided with a plurality of idlers 62 and 63 disposedto rotate in a vertical plane in which the wire aperture 29 lines.Pulley 62 is disposed to rotate in a vertical slot at the bottom end ofshaft 19 to receive wire 55 from aperture 20. Another idler 64 isdisposed adjacent the foot of the spinner to rotate in a vertical planesubstantially perpendicular to the first. A further idler or guideroller 65 disposed to rotate in a horizontal plane is provided at thelower extremity of the spinner arm 60 below the idler 64 and adjacentthe perimeter of the winding block 13 to play out the wire 55. As shaft19 is rotated, the sleeve 58, yoke 57, and wire reel 54 are rotated withit and, at the same time, spinner arm 60 It is to be understoodisrotated with the shaft and guide roller 65 is revolved about the coilwinding block 13 to wind the wire 55 drawn from the reel 54 around theblock to form a coil.

An arcuate arm 66 is secured to and extends upwardly from a collar 67which is clamped to the upper end of the outer tubular shaft 23. Arm 66is arcuate to carry it out of the path of rotation of the wire reel 54and yoke 57. The upper extremity of the arm 66 is provided with a guidechannel or eyelet 68 which is substantially coaxial with the shafts 19and 23. The guide channel 68 is disposed below a suitable support for asecond reel or swift of wire, which is not shown but which is similar towire reel 54 and is similarly mounted to permit the wire to be drawnfrom it. A plurality of guide rollers or idlers 79 are provided alongthe length of the arcuate arm 66 to guide the wire 69 along the arm tothe upper end of the wire channel 51 through the tubular shaft 23.

A second spinner arm 72 is clamped to the bottom end of the outer shaft23 for rotation therewith. Spinner arm 72 extends angularly outwardlyand downwardly and is provided with a pair of vertically disposed idlers73 and 74 lying in a radial plane, a vertically disposed idler 75 lyingin a plane perpendicular to the plane of idlers '73 and 74, and ahorizontally disposed idler 76 at the outer extremity of the spinner toguide wire 69 to the winding block 13. The horizontal idler 76 lies insubstantially the same plane as the horizontal idler 65 to play out thewire 69 simultaneously with wire 55. The spinner arm 72 is somewhatlonger than the spinner arm 60 and the horizontal idler 76 is spacedoutwardly from the winding block by a distance which permits clearancebetween the two spinner arms as they rotate about the winding block inthe same direction at different speeds or in opposite directions.

According to preferred practice as shown in FIGURE 3, both spinner arms60 and 72 rotate in the same direction so that both wires 55 and 69 arewound about the coil forming block 13 in the same direction. Thehorizontally disposed idler 65 and 76 are positioned on the leadingedges of the free ends of the spinner arms. In order to drive thesmaller inner spinner arm 60 in a clockwise direction as indicated,drive sprocket 4-5, gear housing 38-39 and ring gear 37 must be drivenin a counter-clockwise direction by chain drive 52. Counterclockwiserotation of the ring gear 37 necessarily causes counter-clockwiserotation of the planetary gears 35 which in turn rotate sun gear 24 andshaft 19 clockwise. The larger outer spinner 72 is driven in the samedirection as the spinner arm 6%) by direct drive of the outer tubularshaft 23, to which it is secured, by drive sprocket 48 and chain drive53.

Although it is preferred that both spinners be driven in the samedirection this is not essential and if desired, they may be driven inopposite directions. The rates of rotation of the spinner arms dependupon the desired relative number of turns of the wires to be applied byeach of the spinners. If the coil is to be comprised of two wires eachhaving an equal number of turns both spinners are driven at the samerate so that the free ends of the spinner arms make an equal number ofrevolutions about the winding form 13. If the coil is to be comprised oftwo wires having an unequal number of turns then one of the spinnersmust be driven at a relatively faster or slower rate to produce thedesired relationship between the wires. Where the coils are comprised ofwires having an equal number of turns and the spinners are to be rotatedat the same rate of speed, the inner shaft 19 and outer shaft 23 can belocked together to rotate together at the same speed driven by a singledrive means.

The winding form or block 13 is formed of mated top and bottom portions80 and 81. A peripheral groove 82 is formed at the interface between thetop and bottom segments of the winding block to receive and position thewire as it is spunonto the winding block by the spin-- ners. Tofacilitate later removal of the coil, all of the groove 82 is formed inthe topsegment of the winding block to provide a supporting shoulder 83(FIG. 3) of size and shape corresponding generally to the desired sizeand shape of the coils to be wound. A plurality of relatively widevertical channels 84, extending at least as deep as the shoulder 83 andpreferably substantially deeper, are provided on opposite sides of thewinding form 13 to facilitate taping of the coil as described in ourcopending application Serial No. 802,463, filed March 27, 1959. Thewinding block 13 is mounted so as to be stationary with respect to theturntable 10 but is preferably easily removable to facilitatesubstitution of other winding blocks of different sizes and shapes. Theupper and lower portions of the winding form are maintained aligned bymeans of pins and corresponding sockets.

A cutter arm 85 extends downward from the frame 14 above the center ofthe turntable 10. The cutter arm 85 is provided with a notch 86 whichreceives and holds the ends of the wires of a finished coil for cuttingupon rotation of the turntable and winding block away from the windingposition after taping, as described in our copending application SerialNo. 802,463, filed March 27, 1959, and before ejection, as described inour copending application Serial No. 758,227, filed September 2, 1958.As the turntable 10 rotates, it carries a completed coil on the windingblock away from the winding station under the spinners and permits thewires comprising the coil to be severed together adjacent one end orside of the coil.

The reel or spool from which wire 69 is drawn into the spinner mechanismmay, if desired, be mounted on arcuate arm 66 to rotate with that arm.If this is not done and the spool or reel is merely supported above thearm 66 independently of it, the wire 69 will tend to twist somewhatalthough, in most instances, the twist is not excessive and is notparticularly objectionable. It will be understood that the turntable 10is provided with means for rotating it and indexing it with respect tothe coil winding station. These elements are conventional and per seform no part of the present invention.

It is apparent that many modifications and variations of this inventionas hereinbefore set forth may be made without departing from the spiritand scope thereof. The specific embodiments described are given by wayof example only and the invention is limited only by the terms of theappended claims.

What is claimed is:

1. In a coil winding machine adapted to form a coil composed of aplurality of wires, a coil forming and support means disposed on ahorizontal turntable adapted for rotation in a horizontal plane, aplurality of spinners mounted for rotation on a vertical axis co-axialwith said coil support at one indexed position of said turntable, wireplaying means on the ends of said spinners for revolution about saidcoil support in a horizontal plane upon rotation of said spinners, oneof said spinners being secured to rotate at the bottom end of an innervertical shaft, a pinion sun drive gear on said inner shaft, the otherof said spinners being secured to rotate at the bottom end of an outervertical tubular shaft co-axial with the first shaft and disposed aroundit, at least one pinion planetary drive gear whose teeth mesh with saidsun gear on said outer tubular shaft, a horizontal ring gear disposedabout said planetary and sun gears whose teeth mesh with the teeth ofsaid planetary gear, a gear housing enclosing said ring gear and adaptedto rotate with said ring gear about said tubular shaft, drive means forrotating said gear housing and ring gear and separate drive means forrotating said outer tubular shaft, wire supply means disposed above theupper ends of said vertical shafts, one of said wire supply means beingadapted to rotate with said inner shaft, and longitudinal verticalapertures through each of said vertical shafts for passage of wire fromsaid wire supply means to said spinners.

2. A coil winding machine according to claim "1 further characterized inthat each of said spinners includes a plurality of guide pulleysdisposed to rotate in a vertical plane and said Wire playing means is aguide pulley at the free end of said spinner arm disposed to rotate in ahorizontal plane while revolving about said coil support means.

3. A coil winding machine according to claim 1 further characterized inthat said coil support means comprises a block corresponding generallyin size and shape to the desired size and shape of said coil to be woundincluding a mated top and bottom portion joined at a horizontalinterface, a peripheral groove formed in the top portion of the blockimmediately adjacent to the interface and a plurality of relatively widevertical channels on opposite sides of the block extending at least asdeep as the peripheral groove.

4. A coil winding machine according to claim 1 further characterized inthat said outer tubular shaft is provided with a plurality of threeplanetary gears uniformly arrayed about said sun gear and whose teethmesh with both said sun gear and said ring gear.

5. In a coil winding machine, a coil forming and support means, aplurality of spinners mounted for rotation co-axial with said coilsupport, wire playing means on the ends of said spinners for revolutionabout said coil support means upon rotation of said spinners, means forsupplying wire to said spinners and means for rotating said spinners,means for independently driving said spinners, one of said spinners issecured to rotate at the end of an inner shaft and the other spinner issecured to rotate at the end of an outer tubular shaft co-axial with thefirst shaft, a pinion sun drive gear on said inner first shaft, at leastone pinion planetary drive gear whose teeth mesh with said sun gear onsaid outer tubular shaft, a ring gear disposed about said planetary andsun gears whose teeth mesh with the teeth of said planetary gear, a gearhousing enclosing said ring gear and adapted to rotate about said secondtubular shaft, drive means for rotating said gear housing and separatedrive means for rotating said outer tubular shaft.

6. A coil winding machine according to claim 16 further characterized inthat there are provided Wire supply means at the ends of said shaftsremote from said spinners and apertures through said shafts for passageof Wire therethrough to said spinners, each of said spinners includes aplurality of guide pulleys disposed to rotate in a vertical plane, saidwire playing means is a guide pulley at the free end of said spinner armdisposed to rotate in a horizontal plane while revolving about said coilsupport means, said coil support means comprising block correspondinggenerally in size and shape to the desired size and shape of said coilto be wound including a mated top anrd bottom portion joined at ahorizontal interface, a peripheral groove formed in the top portion ofthe block immediately adjacent to the interface and a plurality ofrelatively Wide vertical channels on opposite sides of the blockextending at least as deep as the peripheral groove.

References (Iited in the file of this patent UNITED STATES PATENTS1,047,899 Varley Dec. 17, 1912 1,696,836 Bushyager Dec. 25, 19281,807,199 Dear May 26, 1931 2,365,661 Winslow Dec. 19, 1944 2,495,251Hall Jan. 24, 1950 2,499,246 Harmon Feb. 28, 1950 2,546,869 PrzybylskiMar. 27, 1951 2,700,514 Whittum Jan. 25, 1955 2,831,310 Berthold Apr.22, 1958 2,867,378 Harlow Jan. 6, 1959 2,877,807 Robertson Mar. 17, 19592,931,162 Klein et a1. Apr. 5, 1960 2,932,260 Puma et a1. Apr. 12, 19602,940,337 Kalb June 14, 1960 2,949,554 Biddison Aug. 16, 1960 UNITEDSTATES PATIENT @FFIQE Patent No 3 O65J71 November 27 1962 Zinon CoPossis et alo It is hereby certified that error appears in the abovenumbered patent requiring correction and that the said. Letters Patentshould read as corrected below.

Column 2 line 43 for 'deposits" read deposit =3 lines 55 and 56 for theshaft 196 The spiner arm 60 is clamped to the bottom the shaftfl readthe shaft 19 to a spinner arm 60 secured to the lower end of the shaft193 line 62 for "lines read lies =3 column 6 line 3 for the claimreference numeral "16" read 5 =3 lines 1.2 and 13 for "comprisinglolock." read comprises a bio-ck line 15 for "anrd read and Signed andsealed this 4th day of June 1963,

(SEAL) fittest:

DAVID L. LADD Commissioner of Patents ERNEST W. SWIDER Attesting Officer

